Are you wanting to have a different caller ID set if someone uses the mobile app versus the softphone versus the deskphone? I would think the caller ID should remain the same no matter what you are using to make/receive calls.

1) It can be changed per user (which is not ideal in a corporate setting/ this should be chosen on an administrative level)

2) the phone app defaults to the direct number (confirmed this with Ring Central support, it has to be manually changed to Main Number regardless of ext. settings in web portal). This includes when the app is forced closed and reopened - it goes back to Direct Line, not main line.

Oh, In understand now. Yes, I cannot see why a user would need to set to "Blocked" for the mobile app!! I think this would need to be a feature change request to make it whatever the admin setting it set to.